Which describes a spontaneous reaction?
a. positive δh
b. negative δh
c. positive δg
d. negative δg
e. positive δs

What is the maximum number of electrons that an atomic orbital can contain?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

How have the greenhouse gasses increased from the year 2000 to 2018